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F.. A. PARSONS. I TRANSMISSION AND CONTROL" MECHANISM FOR MACHINE TOOLS.

APPLIEATION FILED APR.1, I9I9.

Patented Nov. 1919.

3 SHEETS-SH-EET I.

F. A. PARSONS.

TRANSMISSION AND CONTBOLMECHANISM FOR MACHINE TOOLS. I

APPLICATION FILEl APR. 1. 19 19.

PatentedlNov. 25, 1919.

8 SHEETSSHEET 2.

, F. A PARSONS. TRANSMISSION AND CONTROL MECHANISM FOR MACHINE TOOLS.

I APPLICATION Fl LED APR. 1 I919. 1,322,939.,

latvnted Nov. 25, 1919.

8 SHEETSSHEET 3- W 119671127 W 62 Ml I F. A. PARSONS.

I TRANSMISSIONAND CONTROL MECHANISM FOR MACHINE T0.0 LS.

APPLICATI ON FILED APR. 11 I919.

Pat ented Nov. 25, 1919.

8 SHEETS-SHEEf 4.

@6170 1 mega.

rrlq

.n QWN F. A. PARSONS. TRANSMISSION AND CONTROL MECHANISM FOR MACHINETOOLS.

APPLICATION FILED APR.1,1919.

Patented Nov. 25, 1919.

t I a SHE Ts- EE 5 F. A. PARSONS. TRANSMISSION AND CONTROL MECHANISM FORMACHINE TOOLS.

APPLICATION FILED APR. 1, I919. 1,322,939. Patented NOV 25, 1919.

8 SHEETSSHEET 6.

F. A. PARSONS.

APPLICATION FILED AFR. I, I9I9.

Patented Nov. 25, 1919.

8 SHEETS-SHEET 7.

Wm EH 22 A.

fit/196m: 0

TRANSMISSION AND CONTROL MECHANISM FOR MACHINE TOOLS.

NH EH w 3H 3H I. I. "III w @u .HHHUM NH W wH F- A. PARSONS.

TRANSMISSION AND CONTROL MECHANISM FOR MACHINE TOOLS.

APPLICATION FILED APR.1|1919. 1,322,939. Patented Nov. 25, 1919.

8 SHEETS-SHEET 8.

WED STAWENT I OFFICE.

FREDA. PARSONS, or MILWAUKEE, WISCONSIN, nssrenoa TO THE KEMPSMITH MANU:

'FACTURING 00., OF WEST ALLIS, WISGONSIN, A CORPORATION OF Wiscons n.

To all wkom'z't may concern:

Be it known that I, F BED A. PARsoNs, a

citizen ofthe United .States residing. at

Milwaukee and Milwaukee, in the county ,of State of Wisconsin, haveinvented certain new and useful Improvements in TI'fi-IISIPIS? sion andControl Mechanism for Mach1ne- Tools, of which the following is aspecification, reference being had to the accompanying drawing,'for'ming a. part thereof.

Themain objects of the invention are to 1 provide amachine tool withimproved means for operatingthe table or work supis being driven; anorganization of the port at either a variable feed rate or a constantquicktraverse rate in such a-manner as to secure operating convenience;to so combine such feed and quick traverse means with elements fordriving the tool, that-the quick traverse rate is always available whllea, feed rate is available only when the tool transmission mechanism inwhich the quick traverse elements run at a quicktraverse rate only whenthey are used to actuate the table or work support at that rate wherebyunnecessary wear is avoided and the life of the mechanism is prolonged;to provide simple,-convenient and efiective means for both manual andautomatic interruption of the operation of the table or work supporteither at a, feed or the quick traverse rate;

to combine with such interrupting means, simplified reversing mechanismfor both 1 feed and quick traverse operation of the table or worksupport; to simplify and improve the construction and operation of thedevices for controlling the power movements of the table or worksupport-; to reduce the number of parts for controlling all operatingmovements of both the tool and t l1e table or Work support, therebysimplifying the movements ofv the operator, increasing his efficiency inrunning the'machine, and enabling a new operator to sooner becomeproficient in the operation of. the machine; and generally to simplifyand improve the construction and'operation of machines of i this class.

Itconsists in the construction and organization of parts to attain theforegoing ob- TRANSMISSIO'N AND CONTROL MECHANISM FQR MACHINE-TOOLS.

ects as hereinafter particularly described and pointedout in the claims.

In the accompanying drawinglik cha racters-designate the eral figures.

Figure 1,is'.a general rear elevation-of a plain milling machine 1embodying the in .vntion; F ig': '2 is a-generalside elevation of the.machine asviewed from the left relative to Fig. 1:; Fig, 3 is a. planview of same parts in the sev- Specification-of Letters Patent. 'Pat t v25 1919.

Application fi April 1, 1919. Serial No. 286,659.

the machine; Fig.- 4 is an enlarged vertical,

longitudinal section on the line.44=, Figs; -3 and 5, of the drivingpulley and clutch unit; Fig. 5 'is an end elevation as seen from theright relative to Fig. 4, of said unit; Fig. 6 isan enlarged sectiongenerally I u on the line 6-6, Figs. 1' and 7, of the-gearv box unitcomprising parts of the spindle, table feed, and table quick traversetransmlsslons; Fig. 7 is a similarly enlarged'section of said gear unitgenerally in planes indicated by, the line 7--7, Figs. 1 and 6; Fig. 8is an enlarged vertical section of the headstock or spindle unit on theline 8-8, Figs; '2 and 3, cutting the overarm and tool spindletransversely; Fig. 9 is a section on 'the line 99, Figs. 1, 3 and 8;Fig. 10 is an enlarged horizontal section on the line l0-10, Figs. 1 and2; Fig. 11 is an enlarged view partly in front elevation and partly invertical longitudinal section, on the line ll--11, Figs and table unit;Fig. 12 is a ,vertical cross section of said unit on the line 12-42,Figs. 11 and 13; Fig. 13 is'an enlarged plan view of said saddle andtable unit, parts being broken away; and Fig.- 1 4 is an enlargedfragmentary horizontal section on the line '1414, Fig. 12, illustratingthe operation of the table controlling devices.

Referring to the general views, Figs, 1,

.. 3, 12 and 13, of the saddle 2 and 3, the frame of the machinecomprises a hollow base 1, which may be cast as shown,

with a bed 2 and with an. outwardly projecting oil pan 3 below the bed,and ahollow, column 4, which may be cast separately and bolted to'thebase as shown.

A pulley and clutch housing 6, is adjustably and removably mounted onone side of the base 1, and a gear box or case 7, is

bolted to the opposite side of the'base and is provided with removablecovers'8 and 9.

A vertically adjustable headstock and spindle housing 11, is mounted onone side of the column 4 above the gear box 7 and isguided and securedin place on the column by bolts 12,-engaging vertical T-grooves' 13 inthe column. The headstock 'is adjusted vertically on the column by meansof a screw-15, engaging a nut 16-on thev headstock and journaled in abearing 17,

fixed to the upper end of the column, the

upper end of the screw being provided with a removable crank handle 18for turning it.

An overarm 20, rigidly fastened ,at one end in the headstock 11, issupported at I at its ends' toj the the opposite end by an outboardharness brace 21, removably ,mounted on'the bed 2, and is provided withpendent arborsupports 22 and 23, the support 22 being guided on thebrace .21 and secured in adjusted position thereon by bolts 24, engagingvertical T-grooves 25 in the brace. A rotary tool spindle '28, ismounted in and vertically adjustable with the headstock-11, below andparallel with the overarm 20, and a rotary tool supporting arbor 29' isdetachably ,con-

'nected with the spindle 28 and supported par-' allel with the overarmby the pendent supand held'in alinement therewith and ports 22 and 23. 7

A saddle. 32, isfmounted and 'movable horizontally toward and from thecolumn 4 on ways 33, formed or provided therefor on the bed 2, parallelwith the overarm 20.

A screw 35,'having a fixed bearing in- .the'frontend: of the bed 2 andprovidedwith a removable crank handle 36, engages a nut 37 (see Fig. 12)on the-under side of the saddle, and serves as meansforman- -uallyeffecting the crossfltraverse of the saddle with the work supportingtable on the ways 33.

A' work supporting ,table 40,

and movable horizontally in parallel xways supported and fastened underside'of the table.

The working parts of the are grouped in separate units, whichfc'a'nreadily removed from the machine' inde spection a'nd repairs;v n

Referring to Figs. 4'. and 5, illustrating-in connection with Figs-1, 2and 3, the driving pendently ofone another, to facil-itate in-r ley ormember 45' is loosely and rotatably prising an inwardly projectingflange 48 attached to the rim of the pulley, a friction. plate .49,mounted on and shifta'bl'e lengthwise of a polygonal end ortionofthejshaftf' into and out of engagement with the pulley flange 48,-andprovided with levers 50; en-

gageable with the opposite side ofithej-pulley flange; Springs52,interposed'between' the hub'of the plate 49 andthe hub f pulley '45,tend to shift andholdlsai'd ip the and springs 53 interposed betweenthel inner endsof the levers 50 and the hub' of the" plate 49, tend toshift and-holdthe'outer. ends of said levers away} from'thet-plate .49

and the intervening-pulley fiange48; The.

- clutch is engaged and disengagedto operapolygonal end of'the'shaft147, is connected late out of engagement withthepulleyflange-48,

by toggle links 56, with the inner endsof the j levers 50. A forkedlever. 57 engaging the spool or collar'55 and fulcrumed .in the housing6,is connected by a rod 58' with anarm 59 on avertical shaft 60,extending up wardly through the: column 4and'provided at its upper endwith; a hand lever '61, as

, shown. in Figs. 1, 3, 4 and lO. Thejto'ggle links 56 have ball andsocket; Ijoint'connec-- tionswiththe levers 5.0andspool'or collar 55',and rto t ake up wear of and adjust-the movable clutch members 49 and'50. --The sockets 63 are threaded and adjustable in the spool or collar55 andare secured in adjusted position therein by lock nuts, as

shown'injFig.4. g a

' s aazagsmsmasm; 5 j

one end bycoupling members'66- with the shaft '47 of the driving pulleyclutch :unit, and isi'provided-at the opposite 'endas other,change-speed gear 68 mounted on a arallelshaft-GQ, j ourn'aled in thegear box By substituting forthe-gears 67 and 68, which areeasilyaccessible by removing the cover. 8,g other'gears' of different sizes,the; speed of the tool spindle 28 may be varied j as deslred. 4 1 3 I'On the end of the shaft 69 op ositezthe gear 68,,- is mounted a bevelgear 2, mesh pulley and clutch unit, a main driving'p'uling as shown inFigs. 1 and 8, witha similar ioo , v v v Pi ot" Referring toFig s. 4,6,17 and 8,"'inrconnecf. tion with'Fig.-- 1,-. a. shaft 65,journaled-inthe gear box 7,-is detachably connectedat bevel gear 7 3 onthe lower end of v -a.v 'ejrti calshaft 74, journaledin and extendingup; wardly intothe column 4. worm 76,

.- v.splined' or "feathered 'on the shaft/Z4, and

confined by bearingsgin-the" headstock '11,

meshin with a gear 104: fixed on the shaft 7 I crank handle 18'.

movable therewith lengthwise of shaft and meshes with aworm gear 77,fixed on the spindle 28, as shown-in Figs. 8 and 9 The spindle28, worm 7Sand worm gear 77 with the headstock 11 in which they are, .housed,constitute the ,spindleunit, which is adjustable vertically by. thescrew 15i and .Table feed transmission. A worm 80, fixed on the shaft65, meshes 'with a Worm. gear 81, mounted on a transverseshaft 82,journaled below it in the 1 mounted with a coaxiaigear 85 on a stud- 86.The gear 85 meshes with .a gear 87 gear box 7. On one end of; thesh'aft' 82 is removably mounted a change-speed gear 83, meshing with agear 84, which is removably connected with a coaxial clutch member 88,journaled in the gear box 7-parallel with the -shaft 82. Thechange-speed gears' 83,

' 84, 85 and 87 are readily accessible by removing the cover 9 of thegearbox and by substituting therefor gears of different sizes, the speedof the'clutch member 88 and-the feed of the table whenoperativelyconnected therewith as hereinafter explained, may be varied as desired.

, 1 A clutch member .91, featheredand slidablymounted on a shaft 92 inaxial alines ment with the clutch member 88, is normally 'held by aspring93 with. r

in engagement there The shaft 92, which has hearings in the V 5 clutchmember 88 and gear box 7 as shown in F igs. 6 and.. 7, extends from thegear box parallel with the spindle 28 and arbor 29 underneath the saddle32, as shown in Figs.

'2, 11, 12 and 13, and is slidablyfeathered in a sleeve 95 havingbearings in the saddle.

. On the sleeve 95 are loosely mounted two gears, '96 and 97, andbetween these gears a clutch collar or member 98 is feathered andshiftable into engagement with a corres ondingclutch member formed on-orat tached to the adjacent side ofeach gear, or

into an intermediate position, as,shown 'in Fig. 12, out of engagementwith the clutch members of both gears. The gear 96 meshes directly witha gear 100, fixed on a shaft-101, mounted in the saddle above andparallel -with the shaft 92. The gear- 97 meshes with areversing ar 102,mounted ona stud 103, which is xed in the saddle parallel with theshafts 92 and 101, and

reach offthe operator.

The clutch member 98 may be shifted manually'into and out of engagementwith either either-direction or into its middle or neutral position, forarresting the movement of the table, or it may be shifted automaticallyout gear 96 or 97, for feeding the table 40 in of engagement with eithergear into its middle or neutral position, to arrest the movement of thetable in either direction, by the following means; j

-A hand lever 109 isfastened to the upper end of a vertical fpivot stem110, which 'is mounted in a removable bushing 111 in the front side ofthe saddle '32 within convenient The-lower end of the stem 110 is formedor provided with a head or flange 112, which has a crank pin 113. A

lever'11 5, fulcrumed on avertical'pin 116 in the saddle, has: forkedends, one ofwvhich engageswith the clutch member 98, and the other withthecrank pin 113.

When the lever 109 is in its middle posi-.

tion as shown'by the full lines in Fig. 13, the clutch member 98 is inits middle or -neutral position, and operative connection between thetable 40.511161 the transmission shaft 92 is broken. By turning thelever 109-to the.ri ght,'as indicated by dotted lines in Fig. 13, theclutch member 98 is shifted into engagement with the gear 96 for feedingthe table 40 forward or to the right. On the other hand, by turning saidlever to the left, as also indicated by dotted lines in Fig.

. 13, the clutch member 98- is shifted into enga'gement with the gear 97for operatively connecting the transmission shaft 92 through the reversegear 102, with the W03m shaft 101, and driving the table in a reversedirection, or to the left. The direction of movement of the hand lever109 thus corresponds with the direction of the resulting movement of*the table, andclearly indicates to the operator the direction in whichthe lever should be turned to produce movement of the table in thedesired direction.

A spring actuated'ball or detent 118, held in a socket in the bushing111 by engagement with spaced seats in the head or flange 112,yieldingiy holds the lever 109 in either of its extreme positionsindicated by dotted lines in Figs. 13 and 14, or in its middleor neutralposition, in which it is shown by full lines in the same figures.

:The lever 109 is formed or provided with an upwardly projecting lug120, close to the front side of the table 40, and the table is providedwith one or more removable dogs 121, fastened to the table by boltsengaging a longitudinal T-groove in its front side and adjustable withthe dogs lengthwise of the table. These dogs are formed with'downwardly, projecting flanges having beveledends as shown in Figs. 12,13 and 14, adapted by engagement with the lug 120 when the table ismoved either directiom to'turn the lever .109 into and leave it in itsmiddle or neutralposition thereby arresting further movement of t etable in the same direction, but-permitting its further movement in thatdirection by-hand, since either dog can pass and clear the lug in itsmiddle position,.andpermitting the lever to be turned l to operate thetable in the opposite direction by power. For example, assuming that thelever. 109- is turned to the right into the p0s1-.

tion indicated by.dotted lines 00, Fig. '14, andthe table isbeing drivenby, power in that direction, as indicated by an arrow, when.

the dog can pass the lug: 120 and the table can'be moved farther totheright by manual operation of the crank or wheel 128, or the lever canbe turned to the left into the position indicated by dotted'liney forpropelling the table in the opposite direction" by-power,

I but said lever cannot be shifted back to position 00 while the dogremains in the posltion in which it is shown by full lines for drivingthe table farther forward or to the right by power.

The table 40 is also provided on the front 3 v side with fixed pins orprojections 123,

which by engagement with cam'surfaces' on the hub of 1ever109 below thelug 120, as

indicated jby dotted lines inFigs. 13 and 14,

will automatically shiftthe lever 109 from v operated by the same handlever 61, which either of its extremepositions into its middle or.neutral position, thereby, shifting the clutch member" 98 out ofengagement wlth' either gear, 96 or 97, stopping the table as it reachesthe limit ofits traverse in either direction, and preventing furthermovement in the same direction andconsequent injury to the' machine.. I

- -.A shaft 125,. mounted in the saddle obliquely to the screw. 42, isprovided at its inner 'end with a spur gear 1 meshing with f a spiralgear 127, fixed on the sleeve nut 107. -At.ai ts outer end, convenientlyaccessible to the;..bperator, the shaft 125 is provided with acrank orhandwheel 128, loosely mounted thereon and having a clutch 129 on itshub which is normally held bya spring 130 out of engagement with acorrespondlng clutch member 131, fixed on the shaft.

w When the-clutch member 98 is in its mid-' 'dle' or' neutral'position,sothat the gears 96 and 97 can turn freely on the shaft 92, the

operator can manually operate the table by thrusting the hand wheel 128inward till 8 wheel in the proper direction to effect the desired tablemovement. In this way the Obviously, ,when the i lever 109 is thus leftin its middle position,

table can be moved by handin either direction after it has been stoppedby the engagement'of .a dog 121 with the lug 120, and mile the lever 109can beturned into position to effect a reverse movement, it' cannot beturned into position to effect further movement in the same direction bypower.

With thefmechanism hereinbefore demoved'in either direction by power ata variable feedrate, or by hand, and that it will be automaticallystopped at 'the limits of its traverse or at any predeterminedintermediate pomt-or points} of its traverse, or its movement may bereversed or arrested b-y hand at any point in its traverse.

Table uick traverse transmission.

opposite sides of a split ring 137, loosely emsbracing said member andengaging a cir'cum ferential groove therein; The outer forked end of thelever 136, which projects through scribed, it will be seen that thetable may be an opening in the upper partof the housing 6, engages aspool or grooved collar 138, ad-

justably mounted on the rod 58. The quick traverse clutch is thusconnected with and operates. the spindle transmission and table feedtransmission controlling clutch on the oppo ite side'of the drivingpulley, as shown in gs. 1 and 3.

When the hand lever 61 which as shown in Figs. 2 and 3, is always withineasy reach of the operator. at the front of the machine,

is swung to the right, the clutch 49 control-' ling the spindle andtable feed transmissions, is engaged with the driving pulley, and theclutch 135 which controls the table quick traverse transmission, isdisengaged from the driving pulley. The spool orcollar I 138 is soadjusted on the rod 58 that in the middle or an intermediate position ofthe j lever 61, both clutches will be disengaged,

the adjustment of said spool or collar determining the time ofengagement and disengagement of one clutch'relative to the time ofdisengagement and engagement of the other clutch, and the rod .58 whichconnects thetwo levers 57 and 136, preventing simultaneous engagement ofboth clutches.

.As shown in Figs. 4, 6 and 7, the clutch member 135 is formed orprovided with a gear v140,meshing with a ear 141, and a shaft 142,separably engage with the gear 141 and passing through the column 4 intothe gear box 7 in Which it has a bearing, is

provided in th'e gear box with a bevel gear table 40, common to both thefeed and quick traverse transmissions.

Although the feed transmission is disconnected from the driving pulley45 by disengagement of the clutch 49, when the quick.

traverse transmission is operatively con nected with the pulley byengagement of the clutch 135, it is necessary or desirable whenever thetable is operatively connected with the driving pulley through the quicktraverse transmission, to disconnect the feed transmission from thequick traverse transmission at or near its -junction therewith. Tothis-end, theshaft 60 is extended below the arm 59, as indicated in,Fig. 1, and is provided at its lower end as shownin Fig. 10, with an arm152. The. arm 152 is connected with a rod 153, extending therefrom intothe gear box 7, and adapted by engagement with an arm of a forked clutchshiftmovable work and tool supports, a common ing leverrl54, to shiftthe clutch member 91 againstthe tension of spring'93 out of en gagementwith the clutch member 88, whenever the quick traverse clutch 135 isengaged with and the feed clutch 49 is disengaged from the drivingpulley 45, as hereinbefore described. The shaft 92 is thus preventedwhenever it is operatively connected by the clutch 135 with .the drivingpulley. through the quick traverse transmission, from actuating the feedtransmission, including its change-speed gears at the quick traverserate, if this were possible, and from subjecting it to unnecessary wear.

is provided on one side of the base with a rotary pump 156, forsupplying a cooling liquid when the nature of the work requires f fit,from a reservoir in the base to the cutter or cutters on the arbor 29.spindle and feed transmission shaft 47 is provided as shown in Fig. 4with a bevel The main gear 158, which meshes as indicated by dot tedlines in Figs. 1 and 2 with a similar gea 159 on a short shaft extendingat right angles to the shaft 47 through the wall of the base andconnected by a clutch 160 with 'the pumpshaft. The pump being thusconnected with the spindle and feed transmis: sion shafts, is operativeonly when the spindle andfeed transniiissionsare connected by the clutch49 with the driving pulley45,

be made without departure from the prinin the following claims.

ciple and scope of the invention as defined I claim:

1. In a machine tool the combination of movable work and tool supports,a driving member, transmission connections between v the respectivesupports and the driving mem ber, clutches for operatively connectingthe respective transmission connections with the driving member, and ashifting device operatively connected with both clutches.

2. In a machine tool the combination of movable work and tool supports,a common driving member, transmission mechanism connected with eachsupport, clutches for operatively connecting the transmissions of therespective supports with the driving member, a shifting device common toboth clutches, and means for preventing simultaneous engagement of bothclutches.

3..In a machine tool the combination of table respectively with thecommon driving member, and a hand lever connected with both clutches andadapted to shift either clutch into or out of engagement.

5. In a machine tool the combination of I15 movable tool and worksupports, a rotary driving member, transmissions for said supports, andshiftable clutches adjacent opposite sides of the driving member for op-Matively connecting it with the transmissions of the tool and worksupports respectively.

6. In a machine tool the combination of movable tool and work supports,a rotary driving member, transmissions forv said sup- 1% ports, clutcheson oppositesides of the draw ing member for operatively connectlng itwith the transmissions of the tool and work' supports respectively, andlevers for shifting the clutches into and out of engagement.

7. In a machine tool the combination of movable tool and work supports,'a rotary driving member, transmissions forsald sup.- ports, clutches onoppositesid'es' of the driving member for operatively connecting it withthe transmissions of the .tool and work supports respectively, andmeanscommon to both clutches for shifting them into and out ofengagement.

8.- Ina machine tool the combination of movable tool and work supports,a rotary driving member, transmissions for said sup-' ports, clutchesonopposite sides of the driving member for operatively connecting itwith the transmissions of the tool and work supports respectively, andshifting means common. to both clutches and adjustable to vary the timeof engagement of one clutchmission for one of said supports, a variablespeed transmission comprising change-speed elements for the othersupport, clutches on opposite sldes of the driving member foroperatively connecting it with said transmissions, and means forshifting either of the clutches into and out of engagement.

11. In a machinetool the combination of a rotary tool spindle, areciprocable work table, a rotary.-driving.member, transmissions forthetool spindle and work table, clutches on opposite sides of thedriving member for operatively connecting it with said transmissions,and a hand lever-con- 'nected with both clutches and adapted to sionconnection ,from the.

shift either clutchinto and out of engagement. I v

- 12. In a machine tool the combination "o-f movable tooland worksupports, a rotary driving member, a clutch adjacent one-side I of-thedriving member, transmission con-.

nections from saidclutch to .both supports,

;a' second clutch adjacent the other side ofthe driving member, and athird transmis clutch to one 0f Q$ PP0F Jii 1 13. In' a machine tool thecombination of movable tool and work supports, a rotary driving member,a clutchadjacent one side of the'd-rivin g member, transmission connections from said clutchito both supports, a second clutch adjacentdriving member, a thir transmission conof both e other side of the Inection from the secondclutch to oneof bot clutches.

14:. In a machine tool-the combination of movable tooland work supports,a rotary driving member, a clutch adj aoent one side I of the drivingmember, transmission connecsup orts, and a shifting device common totions from said clutch to both supports, a second clutch adjacent theother side of the driving member, a third transmission connection-fromthe second clutch toione of the supports, and means for shifting: eitherclutch into and-out of engagement and for preventing simultaneousengagement of both clutches.

15. In a machine tool the combination of movable-tool and work supports,'a rotary driving member, a clutch'adjacent one sideof thedriving'membe-r, transmission co nnec tionsfrom said clutch to-bothsupports, a

second clutch adjacentthe other side of; the

driving member, and a third transmission from the second clutch to oneofthe supports, one of the transmission connections being of constantspeed and one ofthe other transmission connections comprisingchangespeed elements.

- 16. In a machinetool'the combination off movable tool .and worksupports, a rotary driving member, a clutch adjacent one side of thedriving member, transmission-con nections from said clutch to bothsupports, a second clutch adjacent the otherside of.the.

driving member, a third transmission con" 4 nection from the secondclutch to one of the supports, and shiftin means l Ommon; to

both clutches and ad ustable to vary the time'of engagement of oneclut'chrelative to the time of disengagement of the other clutch.

17. In a machine tool the combination of- I a rotary tool Spindle, areciprocable work/ table, arotary driving member, spindle and table feedtransmissions, a clutch adjacent one side of the driving member foroperatively connecting said transmissions therewith, altable quicktraverse transmission, a

clutch adjacent the other side of the driving member for operativel yconnecting the quick traverse transmission therewith,,and a shiftinglever common "ro b th clutches.

18. In a machine tool the combination of a movable work table, a rotarydrivingmember, feed and quick traverse transmissions? for operating thetable, clutches for operatively connecting said transmissions-with,

the driving -member, a third clutch for terrupting operative connectingwith the table' of one transmission when the other transmission isoperatively connected with the driving member by one of the otherclutches,

and shifting means common to all the clutches. I

19. In a machine tool the combination of a movable work table, a rotarydriving member, feed and-quick traverse transmissions for operating thetable, clutches for operatively connecting said transmissions with thedriving member, a third clutch adapted to interrupt'operative connectionWith the table of 'one transmission when the other transmission isoperatively connected with the driving member by one of the:- otherclutches, and shifting means common to all the clutches and adjustableto vary the relative time of engagement and disengagement of the firstmentioned clutches.

20. In a machine'tool the combination of a movable work table, a rotarydriving member, feed and quick traverse transmissions.

for operating the table, clutches for operatively connecting saidtransmissions with the driving member, a third clutch adapted tointerrupt operative connection with the table of one transmission whenthe other trans- -mission is operatively connected with the drivingmember by one of the other clutches, and shifting means common to allthe clutches and adapted to prevent simultaneous engagement of the thirdclutch and the quick traverse clutch.

21. In a machine tool the combination bf a movable work table, a rotarydriving member, feed and quick traverse transmissions for operating thetable, clutches for operatively connecting said transmissions with thedriving member, a third clutch adapted to interrupt operative connectionwith the table of one transmission when'the other transmission isoperatively connected with the driving member by one of. the otherclutches, and shifting means common toall the clutches and adapted toprevent simultaneous engagement of the quick traverse clutch and eitherof the other clutches.

22. In a machine tool' the combination of a movable work table, a rotarydriving member, feed and quick traverse transmissions for operating thetable, clutches for operatively connecting said transmissions with thedriving member, a thirdclutch controlling operative connection of thefeed trans-'- mission with the table, and clutch shifting means adaptedto prevent simultaneous engagement of the quick traverse and feedclutches and to permit simultaneous engagement of the feed and thirdclutches.

23. In a machine tool the combination of a movable work table, a rotarydriving member, a variable speed feed transmission and sionsioroperating the table, clutches for operatively: connecting, saidtransmissions with the driving member, a third clutch controllingoperative connection of the feed transmission with the table, motionreversing mechanism common to both transmissions, and shifting meanscommon to all the clutches.

25. In a machine tool the combination of a a movable work table, arotary driving member, feed and quick traverse transmissions foroperating the table, clutches tor operativelyconnecting saidtransmissions with i the driving member, a third clutch controllingoperative connection of the feed-transmission with the table, meanscommon to both transmissions for interrupting operative connectionthereof with the table, and shifting means common to all the clutches.

26. In a machine tool the combination of a movable work table, a rotarydriving mem-Y ber, feed and qniek traverse transmissions for operatingthe table, clutches for operatively connecting said transmissions withthe driving member, a third clutch controlling operative connection ofthe feed transmission with the table, motion reversing and interruptingmechanism common to both transmissions, and shifting means common to allthe clutches. 27. In a machine tool the combination of a movable worktable, a rotary driving member, feed and quick traverse transmissionsfor operating the table, clutches for operatively connecting saidtransmissions .with

the driving member, a third clutch controlling operative connection ofthe feed transmission with the table, shifting means com-" mon to allthe clutches,'a shiftable motion interrupting. device common to bothtransmissions, and a shiftable controlling device fer operatingthemotion interrupting device.

- '28. In a machine tool the combination of v a movablework table, arotary driving member, feed and quick traverse transmissions foroperating the table, clutches for operatively connecting saidtransmissions with' the driving member, a'third clutch controllingoperative connection of the feed transmission with the table, shiftingmeans common to all the clutches, a shiftable motion. .interruptlng andreversing device common to both transmissions, and a shiftablecontrolling device for operating the motion interrupting and reversingdevice to either interrupt or reverse the movement of the table byeither transmission.

29. In a machine tool the combination of a movable table, a rotarydriving member, feed and quick traverse transmissions for operating thetable, clutches for operatively connecting said transmissions with thedriving member, a third clutch controlling operativ'e connection of thefeed transmission with the table, means tendingtoshift the a movablework table, a rotarytool spindle,

arotary driving member", a spindletransmission, a feed-transmissionfor-the table,

a clutch common ,to said, transm1ss1ons for simultaneously connectingthem/with the: 1 driving member, a quick traverse -transm1s-' I gs'ionfor the table, a clutch for connecting the; quick traversetransmission"with thedriving member, and shifting means monto bothclutches.

'31. In amachine tool the combination of a movable Work table, a rotarytool spindle,

a rotary driving member, a spindle trans- I I both clutches, motionreversing mechanism mission, a table feed transmission, a clutch forsimultaneously connecting said transmissions with the driving'member, atable qulck traverse transmission, a clutch .for-

connecting the quick traverse transmission w th. the driving member,shifting v.means 'c'ommon' to both clutches, and means rendering onetable transmission inoperative when the other is operative.

32. In a machine tool the combination of a movable work table, a rotarytool spindle, a

rotary driving member, a spindle transmission, a table feedtransmission, a clutch for connecting said transmissions with thedriving member, a table quick traverse transmission, a clutch forconnecting the quick traverse transmission with the driving member, and

shifting means common to both clutches and compris ng an adjustableelement for varying the time of engagement of one clutch relative to theother. I

33. In a machine tool the combination of a movable work table, a rotarytool spindle,

a 'rotary driving member, a spindle transmission, a table feedtransmission, a'clutch for '--'j'connecting said transmissions with thedriv-' ing member, a table quick traverse transmiss on, a clutch forconnectlng said quicktrav- I I erse transmission with the drivingmember, 1 and clutch shifting means compris ng means 5; 6' rende 1'ingthe spindle and'table [feed trans- I missions inoperative when the tablequick traverse transmission is O'PBIELUVIBQ. y

34.1111 a machine tool the combination f a movable work-table, a rotarytool spindle,

a' rotary driving member, a spindle trans mission, a table feedtransmission, a clutch for; connecting said transmissions with thedriving member, a table quick traverse tran's-v mission, a clutchforconnecting the quick .travc rse transmission with the driving member,shifting means common to both clutches, and motionreversingmech-amsmcommon to .both table transmissions.

5 35. In a machine tool the combination of a movable work table, arotary tool spindle,

a rotary driving member, a spindle transrse auntie-engage mission, atable feedtransmission, a clutch 'forconnecting said transmissions withthe driving member, a table quick traversetransmission a clutch forconnecting the vquick traverse transmission, with the drivmember,shifting means common to both clntches, and motionreversing andinterruptlng mechanism common to both table. transmissions.

'-- 36. In a machine tool the combination of transmission, a clutch forconnecting the quicktraverse transmission with the driving member,shifting means common to common to both table transmissions, andcomprising a shiftable member, and a controlling device for shiftingsaid member.

' 37. In a machine tool the combination of a movable work table, arotary tool "spindle,

a'rotary driving member, a spindle trans- .mission, 'a tablefeedtransmission, a clutch for connecting said transmissions with thedriving member, a table quick traverse transmission, a clutch forconnecting the quick traverse'transmission with the driving member,shifting means common to both clutches, a motion interruptmg devlcecommon to both table transmissions and comprising a shiftable-member,and a controlling device for shifting the, motion interruptin g memberto stop the table,

38. Ina machine tool the combination of a movable work table, a rotarytool spindle, a rotary driving member, a spindle transmission, a tablefeed transmission, a clutch for operatively connecting saidtransmissions with said driving member, a table quick traversetransmission, I a clutch for connecting the quick" traverse,transmission vwith the driving member, a third clutch controllingoperative connection of the feed transmission with the table, andshifting means common to all the clutches.

39; In a machine tool the combination of a movable work table, a rotarytool spindle,

a rotary driving member, a Spindlel transmission, a table feedtransmission, clutches -for"-'operatively ;connecting said transmis-"sions' with the driving member, a table quick traverse transmission, aclutchforconnecting the quick 1 traverse transmission vvi-t li'the-driving gmember, a third fg cliltch "controlling operativeconnection of the'feed transmission with the table, and shifting meanscommon to all-the clutches and comprising means to prevent simultaneousengagement of the quick traverse and third clutches,

40. In a machine the combination of,

a movable work tabla -a' rotary 'to"o1 spindle,

a rotary di-ix 'ing member,a spindle transill'llSSlOIl, a table feedtransmission, a clutchforb operatively connecting said transmissionswith the driving member, a table quick traverse transmission, a clutchfor connecting the quick traverse transmission with the driving member,a third clutchcontrolling operative; connection of the table with thefeed transmission, and shifting means common to all the clutches andcomprising. adjustable means for varying the relative time .ofengagement of the first two clutches.

.42..In a machine tool the combination of a rotary driving member, amovable work table, a rotary tool spindle,-.a spindle transmission, atable feed transmission, a clutch for operatively connecting saidtransmissions with the driving member, a table quick traversetransmission, a clutch for connecting the quick traverse transmissionWiththe driving member, a third clutch controlling operative connectionof the table with the feed transmission, reversing v mechanism common toboth table transmissions, and shifting means common to all the clutches.r 1

43. In a machine tool the combination of a movable work table, a rotarytool spindle, a rotary driving member, a spindle trans-- mission, atable feed transmission, a clutch for operatively connecting saidtransmissions with the driving member, a table quick traversetransmission, a clutch for connecting the quick traverse transmissionWith the driving member, a third clutch controlling operative connectionof the ta-v *ble with the feed transmission, ashift-gablemotioninterrupting member common. to

"both table transmissions, a controlling de'-- vice' for shiftingsaidmember, and [shifting means common to'all the clutches- I 44. In a,machine tool they combination of a movable work table, a rotarytooljspindle, a rotary driving member, a spindle transmission, -a tablefeed transmission, a clutch for operatively connecting saidtransmissions with the driving-member, a

table quick traverse transmissionya clutch for connecting the quicktraverse transmission with the driving member, a third clutchcontrolling operative connection of the table with the quick traversetransmis sion, motion reversing and interrupting mechanism common toboth table transmis:

clutches. Y 1

l5. In a machine tool thevcombination of a rotary driving member, aspindle transmission, a table feed transmission, a clutch foroperatively connecting said transmissions with the driving member, atable quick traverse transmission, aclutch for connecting the quicktraverse transmission with: the driving member, a third clutchcontrolsions, and shifting means conimon to all the 1 a movableworktable, a rotary tool spindle,-

ling operative connection of the table with the feed transmission,motion reversing and interrupting mechanism comprising a shift-; ablemember common .'to both table transmissions, and a controlling deviceforshift: ing said member.

46. .In a machine tool the combination of a movable work table, a rotarytool spindle, a rotary driving member, a spindle transmission, a tablefeed-transmission,- a clutch for operativel'y connecting said tra'nsmis'sions with the driving member, a table quick.

traverse transmissioma clutch for connecting the quick traversetransmission with the driving member,'a third clutch controllingoperative connection of the table with the feed transmission, andshifting means common to all the clutches and comprising means todisengage the third clutch Whenever the quick traverse clutch isengaged,

L7 In a machine tool the combination of a movable work table, a rotarytool spindle,

a rotary driving member, a spindle trans-- m ssion, a table feedtransmission, a clutch' for operatively connecting said lil'iLIlSlIllS-sions with the driving'member, a table quick traverse transmission, aclutch for connect-- ing the quick traverse transmission with thedriving member, a third clutch" controlling operative connection of thetable with the feed transmission, means tending to shift the thirdclutch into engagement, and means common to all the clutches andcomprising means to disengage the third clutch whenever the quicktraverse clutch'is engaged.

'48. In a machine tool the combination of:

amovable work table,'a rotarytoolspindle',

.a pump transmission, a clutch for opera-- tively connecting saidtransmissions with the driving member, a table quick traversetransmission, aclutch for connecting the 1 quick traverse transmissionwith the driving member, and shifting means'common to both clutches andadapted to prevent engagementa pump,.a common driving member, a spindletransmission, a table feed transmission, 9 v

of the 'pump-jjcontrolling clutch when'th'e i whereby the pump -isoperated onlyw en 'quick traverse' controlling clutch is enga ed,

the spindle transmission and table feed transmission are operativelyconnected with the driving member.

19. In a machine tool the combination of a movable work table, a tablefeed transmission, a pump, a pump transmission, a driving member, aclutch for operatively connccting said transmissions with the drivingmember, a table quick traverse transmission, a clutch for connecting thequick traverse transmission with the driving member, and shifting meanscommon to both clutches and comprising means to prevent engagement ofthe pump controlling clutch when the quick traverse controlling clutchis engaged. whereby the pump is operatively connected -Wll3l1 thedriving member only when the nature.

table feed transmission is operatively connected therewith.

50. In a machine tool the combination of a movable work table, a rotarytool spindle, a driving member, a spindle transmission, a table feedtransmission, a table quick traverse transmission, and a shiftablecontrolling member adapted when shifted in one direction tooperativelyconnect the spindle transmission and table feed transmission with thedriving member and when shifted in the other direction to operativelyconnect the table quick traverse connection with the driving member.

In wltness whereof 1 hereto aflix my sig- FRED A. PARSONS,

